So would you put the MC100 at the end of the line beside the M60? Would that not drop pressure and volume quite a bit?
There are just too many manuf.'s and designs to know all that information, but I have seen filters drop pressure as much as 5psi put 3-4 of those inline you get the idea. They also can have a max psi working pressure too so if your are throwing 160psi from your 2 stage compressors (that's a common factory pressure setting) then having a filter with a max pressure rating of 120psi would be a mismatch.
Getting the proper filtration for your application is not rocket science you just have to match what your starting with (your compressor) then build from there, getting a unit that exceeds your demand is a good idea but don't get something that has a lower rating then what your compressor can do.